Wilwood Front Narrow Dynapro Brake Kit for Mazda MX-5 Miata / Fiat 124 Spider, Black, 11.00-Inch GT Rotors

This front Narrow Dynapro package brings together 11.00-inch gt slotted brake rotors, pads and black 4-piston Wilwood calipers for Mazda MX-5 Miata / Fiat 124 Spider (2016–2025). Rotor registration, caliper mounting and the wheel envelope should all be compared with the installation drawing. Established by Bill Wood in 1977 and based in Camarillo, California, Wilwood Engineering develops disc-brake systems and components for motorsport, street-performance and specialized applications. The range spans calipers and brake rotors through master cylinders, valves, fittings and brake lines, all requiring selection to suit the other parts of the brake system.

Technical Details

• Manufacturer part number: 140-17363; supplied as an axle kit.
• Service calipers: Narrow Dynapro Radial Mount; 4 pistons per caliper; Black Powder Coat; radial mounting; stainless pistons.
• Supplied friction pads: BP-10 compound; match operating conditions to the intended use.
• Hydraulic lines: Braided flexlines included; verify fittings, length and routing on the actual vehicle.
• Rotor hats: Aluminum big brake hat - short offset; Black E-Coat; hat offset 0.750 inches. Hat offset is distinct from axle offset.
• Wheel envelope: 15-inch minimum nominal wheel diameter; verify the entire wheel-clearance drawing, including spoke and barrel shape.
• Hydraulic sizing: cataloged bore sizes 1.38, 1.38 inches; piston area 3.00 square inches; inlet 1/8-27 NPT.
• Rotor/hat mounting-hole pattern: 4 x 3.93 in; 4 x 99.82 mm; cataloged hole clearances 0.500 in; 12.70 mm. These are rotor or hat drillings, not replacement wheel studs. The retained hub or axle determines the vehicle wheel pattern.
• Rotor specification: Material: Spec-37 Iron; Type: GT 72 Straight Vane; Style: GT Slotted; Surface Finish: Plain.
• Hardware and retained components: Mounting hardware supplied; existing wheel hubs retained; spindles, master cylinder and brake booster are not included.
• Brake rotor size: 11.00-inch outside diameter × 0.81-inch thickness; vented friction section.

Fitment & Compatibility

Select the Mazda MX-5 Miata or Fiat 124 Spider row below by year and brake configuration, then check DS1554 for the factory upright and 15-inch wheel envelope. This BP-10 package uses fixed-bolt GT rotor rings and aluminum hats, rather than the dynamic race attachment. The front hub remains; verify rotor registration and braided hose travel throughout steering and suspension movement. Use the fitment table below to check the complete application and option notes.

Before ordering for modified hardware, give PMB Performance the VIN and clear photos of the installation. Our more than 20 years of parts experience helps us assess the details that model year alone cannot resolve.

Review Installation instructions for the complete installation and clearance requirements.

Manufacturer Warning

Applicable to brake pads only. WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.